Accessing Response Body Fields(Session ID) in Cookie Connector

When setting up/using a Cookie based HTTP connection how do we access the "SessionID" (Or the response body fields in general). Im getting a success along with the session ID on the initial call to configure the cookie auth, the connection then fails on the "How to test connection" get call. I removed the how to test part, saved the connection(which shows online), took the session id from the example(below) and used it on a generic get call on a flow and did get data back, how do we access these fields on a cookie connection?